{
  "bibcode": "2023GCN.33637....1Q",
  "body": "R. Querrard (UVI), K. Smith (UVI), N. Orange (OrangeWave Innovative\nScience, LLC), D. Morris (UVI), P. Gokuldass (Florida Tech), and K.\nNoonan (UVI)  report:\n\nWe observed the field of GRB230414B (D'Ai et al. GCN 33612; Evans et\nal. GCN 33613) with the 0.5m Virgin Island Robotic Telescope (VIRT) at\nthe University of the Virgin Islands' Etelman Observatory on\n04-14-2023 starting at 23:35:12 UT (T+7.4hrs). We performed a series\nof exposures in R filter with a total exposure of 1080 s. The weather\nconditions were mixed during the hours of observation with an average\nairmass of ~1.5.\n\nWe detect the optical transient reported by others (Pankov et al., GCN\n33615; Lu et al., GCN 33616; Raman et al., GCN 33618; Ghosh et al.,\nGCN 33620; Moskvitin et al., GCN 33622; Malesani et al., GCN 33623;\nZhu  et al., GCN 33625, Belkin et al., GCN 33628; Agui Fernandez et\nal. GCN 33629; Quadri & Strabla GCN 33630; Leonini et al. GCN 33634;\nand Ror et al. GCN 33636). We confirm a slow decay or rebrightening as\nsuggested in earlier reports (Malesani et al., GCN 33623 and Moskvitin\net al., GCN 33622) and report the following magnitude:\n\nT_mid       ||Exposure     ||Filter      ||Magnitude     ||Airmass\nT+7.8 hrs ������||1080s        ||R           ||19.1 +/- 0.2   ||1.5\n\nThe magnitude is estimated from comparison to nearby USNO B1 stars and\nis not corrected for Galactic extinction. Further analysis is in\nprogress. The VIRT is still in the commissioning phase.\n\nWe acknowledge financial support from NASA MUREP MIRO award\n80NSSC21M0001, NASA EPSCoR award 80NSSC22M0063, and NSF EiR award\n1901296. R.Q. and N.B.O. also acknowledge financial support from South\nCarolina Space Grant award 80NSSC20M0054. This message can be cited.",
  "circularId": 33637,
  "createdOn": 1681688685000,
  "email": "pgokuldass2020@my.fit.edu",
  "subject": "VIRT optical transient detection",
  "submitter": "Priya Gokuldass at Florida Tech  <pgokuldass2020@my.fit.edu>"
}